and relatively consistent scientific data showing a substantial health benefit.
Contradictory, insufficient, or preliminary studies
suggesting a health benefit or minimal health benefit.
For an herb, supported by traditional use but minimal
or no scientific evidence. For a supplement, little scientific support and/or minimal health
Historical or traditional use (may
or may not be supported by scientific studies)
Raspberry leaves have been used by herbalists to treat diarrhea. In traditional herbalism and midwifery, red
raspberry has been connected to female health, including pregnancy. It was considered a remedy for excessive
menstrual flow (menorrhagia) and as a
“partus prepartor,” or an agent used during pregnancy to help prevent
Raspberry leaves are high in tannins and like its relative, blackberry, may relieve acute diarrhea.2 The constituents that affect the
smooth muscles, such as in the uterus, have not yet been clearly identified. The German
Commission E monograph has concluded there is insufficient proof to recommend red raspberry in
modern herbal medicine.3
How much is usually taken?
Traditionally, raspberry leaf tea is prepared by pouring 1 cup (250 ml) boiling water over
1–2 teaspoons (5–10 grams) of the herb and steeping for ten to fifteen minutes. Up
to 6 cups (1500 ml) per day may be necessary for acute problems such as diarrhea or sore throats due to a cold, while less (two to three cups [500–750
ml]) is used for preventive use during
pregnancy. By itself, raspberry is usually not a sufficient treatment for diarrhea.
Tincture, 3/4–1 teaspoon (4–8 ml) three times per day, may also be taken.
Are there any side effects or interactions?
Raspberry leaf may cause mild loosening of stools and nausea. Otherwise, use of the herb
appears to be safe.
Are there any drug
Certain medicines may interact with red raspberry. Refer to drug interactions for a list of those medicines.
References (To view, roll mouse over the "References" heading; to hide, click on the heading)
1. Lust JB. The Herb Book. New York: Bantam Books, 1974,
2. Tyler VE. Herbs of Choice: The Therapeutic Use of
Phytomedicinals. Binghamton, NY: Pharmaceutical Products Press, 1994, 52,
3. Blumenthal M, Busse WR, Goldberg A, et al. (eds). The Complete
Commission E Monographs: Therapeutic Guide to Herbal Medicines. Boston, MA: Integrative
Medicine Communications, 1998, 366.
The information presented in Aisle7 is for informational purposes only.
It is based on scientific studies (human, animal, or in vitro), clinical experience,
or traditional usage as cited in each article. The results reported may not necessarily occur
in all individuals. For many of the conditions discussed, treatment with prescription or over
the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist
for any health problem and before using any supplements or before making any changes in